Improvement in steaw cutters



H. OGBORN.

Straw Cutter.

Patented March 5, 18,67.

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@gleiten tate gatwt @fitta HARRISON OGRORN, or RIOHMOND, INDIANA,AssIcNOR To HIHSRLR AND JOHN w.v RRRR, or THR SAME RIJAOR.

Letters Patent No. 62,674, datcddlrarcz 5, 1867.

IMPROVEMENT IN STBAW GUTTERS.'

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Be it known that I, HARRISON OGBORN, of Richmond, in the county ofWayne, and State of Indiana, have invented new and useful Improvementsin Straw and Fodder Cutters; yand I do hereby declare that the follow-'ing is a full, clear, andexact description of the same, reference beinghad to the annexed drawings, made part of this specification, in which-Figure 1 is a perspective View.

Figure 2 is a side elevation.

Figure 3, an elevation showing the cam on the ily-wheel Figure 4,asection of the same; and

Figure 5de a central longitudinal vertical section. I

The same letters are employed in all the figures for the indication ofidentical parts.

A is the frame and cutting-box; B the driving-crank, which turns theshaft O, crossing the cutting-box,V and carrying the overhungbevel-wheel D, which drives the bevel-pinion E on the end ot' the sha-ftF of the ily-wheel Gr. v'.lhe knife H is attached to the arms of thefly-wheel Gr by bolts, H', having nuts upon each side of the iiy-wheel,holding the knife' securely, and permitting 'its adjustment. The knifeis attached to the ilywheel, with the end that first'begins to outnearer the centre than the other, so as to give a shearing out. Theplate J is adjustably attached to thev frame by set-screws passingthrough slots in the plate and into the sides of the frame, This plateis bent at right angles, passing across the end of the frame to a'pointbeyond the end of the knife, which projects beyond its point ofattachment. This adjustable plate prevents the knife from being thrownaway from the edge of the-cutting-box by the straw or other materialsubjected to its action. The edge of the box is formed by a plate,having a downward inclination towards the edge, inV connection withwhich the knife acts. This inclination is given for the purpose ofallowing the straw to bend slightly, so that the knife may act thereonslightly diagonally. The bottom of the box is level.

The straw or other material to be out is fed between the two rollers Land L. The lower roller L turns upon ixed bearings, while the upperroller-L has a free vertical play, its journals passing through slots inthe sides of the cutting-box, and is pressed upon the top of the strawor other material by the tension oi' the springs, which rest upon thejournals outside the cutting-box. The degree of pressure given by thesprings is regulated by the eccentric cams N, which are notched upontheir edges, the notches fitting the projection h on the springs, sothat thc cams cannot turn by the shaking of the machine when inoperation. O and O are ratchets, upon the ends of the journals of therollers L and L,.the notches on which are-in different directions, sothat the upper roller shall turn under, and the lower one over towardsthe mouth of the cutting-box, with the action or" the feed hands P andP1. Thesevfeed hands are attached respectively to the upper and lowerendsof the bell-crank K, which is pivot-ed to the side of the frame. Thefeed hand P, resting upon the ratchet O, pushes it with the movement ofthefeed hand, and upper part of the bell-crank, away from the ily-wheel.The feed hand P1 rests-upon the top of the ratchet O', and, hooking overthe teeth, draws the ratchet, with the motion of the feed hand and-lower end of the bell-crank, towards the fly-wheel. rlhe feed mechanismis actuated by a cam, Gr', attached to one of the arms of thc fly-wheeloppositeto that to which the knife is attached, nearest the centre, sothat the feed motion shall be given when the knifcis not in action. Thiscam is attached tothe ily-wheel by a screw, cut on its stem, and havinga jam-nut on the end, on the opposite side of the y-wheel, by whichmeans the amount of feed may be regulated by giving more or less motionto the shank of the bellcrank. This cam has two faces, so that it mayact-upon the bell-crank when the ily-wheel is revolving in eitherdirection. The faces oi' the cam G are eccentric as to the centre of theily-wheelLand inclined outwardly from the latter, the curvature of theface being accommodated to the circle described by the point ofthebell-crank K, against which the camimpinges with the revolution of theily-wheel. The bell-crank K has a series of holes along its edge, towhich the feed hands are adjustahly attached, thus enabling the operatorto regulate the feed, which operation is also assisted by the adjustablestop-plate Q, the point- 'of which rests against the bell-crank, andregulates its motion away from the ilyfwheel. Pins, l, are passed.through thc lugs upon the top oiA- the feed hands, and project withinthe grooves out on the outer faces of the ratehets O and U for thepurpose of holding the feed hands inA their proper rclation to therntchets, the Width of the groove being only suiicientto allow theproper :Lotion ofthe feed hands. A spring, K', presses the lower end ofthe bell-crnuk K ztwny from the ily-wheel, thus bringing the pointthereof` again into its normal position nsisoon as the cem has' pessed.

What I clniin nis lmy invention, and desire to secure by Letters Patent,is

l. The adju-stable knife H, attached to the ily-Wheel, in combinationwith the adjustable guide-plate G, attached to the'frzrme, substantiallyas and for the purpose set forth. i v

2. The combination of the adjustable knife H and adjustable guide-plateGr with the inclined plete A', substantially as and for the purpose setforth.

3. The eccentric notched eem N, in combination with the springs M,having projection 1 substantially as and for the purpose set forth.l

4. I claim the cem G', in combination with the i1y-whee1G and boli-crankK, when respectively constructed and arranged substantie-ily as setforth. i

5. The mode of securing,` the feed hands in their relation to theratchets by projections and grooves, sub

stztntinlly ns and forA the purpose set forth.

6. The devices for actuating and adjusting the feed hands by means ofthe-adjustable cam' G', bell-crank K, adjustable feed hands P end P, andadjustable plate Q, substantially es described.

In testimony Whereofl have signed my name to this specification in thepresence of two subscribing witnesses.

HARRISON oeBoRN.

Witnesses z D. P. I-IoLLoWAY, CHAs. F. CLAUSEN.

